CSSMin: Fix remapOne() for URLs that are proto-relative or have query part

Bug: 58338
Change-Id: I836a2c054ae3edc07895b2388f4ec8663223347a
(cherry picked from commit 3987b10b51ac76d18b82f94251c8fae0f6d469f5)
Merge "CSSMin: Fix remapOne() for URLs that are proto-relative or have query part" into wmf/1.23wmf6